chore: update docs on real-time and VILLASnode interfaces #2616

Job	Run time
Scan Sourcecode with Cppcheck	3m 42s
Build dpsimpy and tests examples on Fedora Linux	7m 3s
Build Cxx examples on Fedora Linux	10m 56s
Run pytest over all notebooks	13m 12s
Execute WSCC 9 bus example	1m 9s
Run dpsim-mqtt-import-export VILLASnode example / Run a VILLASnode example across multiple containers	1m 23s
Run dpsim-mqtt VILLASnode example / Run a VILLASnode example across multiple containers	1m 34s
Run dpsim-mqtt-import-export-MIMO VILLASnode example / Run a VILLASnode example across multiple containers	1m 13s
Run dpsim-file VILLASnode example / Run a VILLASnode example across multiple containers	1m 28s
Run mqtt-cigre-mv-pf-profiles VILLASnode example / Run a VILLASnode example across multiple containers	1m 42s
Compare Notebook results	0s
	43m 22s

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